ID-DCU-MARINE-2.2.2,  ©ComAp – June 2015   - 137 - 
ID-DCU-MARINE-2.2.2.pdf 
ID-RPU 
Redundancy protection unit  
 
 
 
 
 
Binary information from ID-RPU to ID-DCU MARINE 
State of all binary inputs SD1-SD5 
State of all BW protections 
Primary A battery fail = switched to B battery 
Binary input Emergency stop state 
Stop solenoid output BW indication 
Fuel solenoid output BW indication 
 
Binary information from ID-DCU MARINE to ID-RPU 
Binary output Common warning 
Binary output Common shut down 
Binary output Fuel solenoid 
Binary output Stop solenoid 
Controller  application AUX – EME (or Sd override active)